摘要
The host-guest interactions between cyclopentanocucurbit-[6]uril(CyP_(6)Q[6])as host and six alkyl imidazolium hydrochloride as guests(g1,g2,g3,g4,g5,and g6)have been studied by various techniques,such as^(1)H NMR spectroscopy,isothermal titration calorimetry,mass spectrometry,and single-crystal X-ray diffraction analysis.The experimental results showed that CyP6Q[6]formed 1:1 inclusion complexes with each of guests g1-g6.The part of the guest entered the cavity of CyP_(6)Q[6]changes as the alkyl chain increases in length.It can be seen that the length of the alkyl chain plays a key role in determining the mode of host-guest interactions.
基金
This work was supported by the National Natural Science Foundation of China(No.21762011)
the Guizhou Science and Technology Planning Project,China(Guizhou Science and Technology Cooperation Platform Talent)(No.20175788)
the Guizhou Province Graduate Education Innovation Project,China[No.YJSCXJH(2020)188].
